C / C++ / MFC

Re: Write a .ini file of the application in MFC

14-Dec-04 23:33

Could someone tell me how to write a .ini file of an application to store some states of all controls in an application? Simply using CFile to write or there are some special classes to handle this? Thanks!

User 665815-Dec-04 0:54

User 6658

15-Dec-04 0:54

The
GetPrivateProfileXXX and
WritePrivateProfileXXX
functions do the job for you

modified 12-Sep-18 21:01pm.

color the text in MFC Dialog

ytod14-Dec-04 23:05

14-Dec-04 23:05

Hi, everyone:
Can someone provide a EZ way to change an individual text in a dialog? I knew that I can use CDC functions to realize that, but can I do this on a Static Control? To talk in detail, I wanna use SetWindowText() or SetDlgItemText( ) to change the text of a control containing some text string. And what should I do to change the reulting text? Or don't think about that, simply use CDC functions? Thanks!

V.15-Dec-04 0:56

15-Dec-04 0:56

Handle the WM_CTLCOLOR message.
In VS call the properties for the dialog, there you can set handlers for messages, in that list is a WM_CTLCOLOR message. Choose a function to handle this.
Write something like this in it:

HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);<br />
CBrush *brush;<br />
brush = NULL;<br />
// TODO:  Change any attributes of the DC here<br />
CWnd* pStaticWnd = (CWnd*)GetDlgItem(IDC_STATIC_STATUS);<br />
if(pWnd == pStaticWnd){<br />
    pDC->SetTextColor(RGB(0, 0, 255));<br />
}                                       //end if<br />
pStaticWnd = (CWnd*)GetDlgItem(IDC_STATIC_INFO_DOC);<br />
if(pWnd == pStaticWnd){<br />
    if(lock_docstatus_text){<br />
        pDC->SetTextColor(RGB(0, 100, 200));<br />
    }                                   //end if<br />
    else{<br />
        pDC->SetTextColor(RGB(0, 0, 255));<br />
    }                                   //end else<br />
}                                       //end if<br />
pStaticWnd = (CWnd*)GetDlgItem(IDC_STATIC_INFO_SEND);<br />
if(pWnd == pStaticWnd){<br />
    if(lock_sendstatus_text){<br />
        pDC->SetTextColor(RGB(0, 100, 200));<br />
    }                                   //end if<br />
    else{<br />
        pDC->SetTextColor(RGB(0, 0, 255));<br />
    }                                   //end else<br />
}                                       //end if<br />
// TODO:  Return a different brush if the default is not desired<br />
return hbr;<br />

for more info check out msdn.

Hope this helps, good luck.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

ytod15-Dec-04 16:12

15-Dec-04 16:12

It didn't work....
But if the condition in if() changed to this form could work:

if( pWnd->GetDlgCtrlID() == IDC_STATIC_MY_STATIC )<br />
{<br />
    pDC->SetTextColor(RGB(255, 0, 0));<br />
}

Anyway, thnks for your help.

David Crow15-Dec-04 4:04

15-Dec-04 4:04

ytod wrote:
To talk in detail, I wanna use SetWindowText() or SetDlgItemText( ) to change the text of a control containing some text string. And what should I do to change the reulting text?

You just answered your own question. Use SetWindowText().

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

ytod15-Dec-04 15:33

15-Dec-04 15:33

DavidCrow wrote:
ytod wrote:
To talk in detail, I wanna use SetWindowText() or SetDlgItemText( ) to change the text of a control containing some text string. And what should I do to change the reulting text?

Poke tongue | ;-P

Miss one word "color":
And what should I do to change the reulting text "color"?

But I need to try what the previous post described first, thanks!

David Crow16-Dec-04 4:00

How to add a lineat the beginnig of a file?

16-Dec-04 4:00

Using OnCtlColor(), or handling the WM_CTLCOLOR message, is the preferred method.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

lucia4444es14-Dec-04 22:50

lucia4444es

14-Dec-04 22:50

I need to insert a new line at the beginning of a text file but i don´t know how to do this without overwriting the first line. This is my code:

...
file.SeekToBegin();
file.WriteString(text);
...

I've also tried this:

...
file.SeekToBegin();
file.WriteString("\r\n");
file.WriteString(text);
...

but it doesn´t work. Could anyone help me? Thanks

Lucia

User 665814-Dec-04 23:11

User 6658

14-Dec-04 23:11

Do you have a valid file handle, do you have write-access to this file?

Check the return codes.

modified 12-Sep-18 21:01pm.

Cedric Moonen14-Dec-04 23:11

Cedric Moonen

14-Dec-04 23:11

It is not possible to 'insert' new data at the begining of the file. A solution for doing that is using a temporary file. In this file, you first copy the first line you need to insert, then copy all the data from the original file. When this is done, you take this data and copy it into the original file (erasing all it's previous contents).

ytod14-Dec-04 23:21

14-Dec-04 23:21

I think allocating a buffer that's long enough to store previous data could also work.

lucia4444es14-Dec-04 23:33

lucia4444es

14-Dec-04 23:33

Thanks for the reply. I have already thought of this solution but i searched the simplest one. Ok, i'll try using a temporary file

David Crow15-Dec-04 4:08

how to read resource info from an exe file directly?

15-Dec-04 4:08

Be sure you have write access to the folder in which the temporary file will be created. If the file is not gigantic (e.g., 100MB or more), you could just read it into a heap-based buffer, write the new text to the file and then append the contents of the buffer. That's about as simple as it gets.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

includeh1014-Dec-04 22:46

includeh10

14-Dec-04 22:46

is it possible to read icon (resource) info from an exe file directly without using resource functions such as ::FindResource()?

thx

includeh10

Re: how to read resource info from an exe file directly?

David Crow15-Dec-04 4:08